Home / 7,458.18-11,187.30-3,561.72

Finding the Fourth Proportional to 7,458.18, 11,187.30 and 3,561.72

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Solution

The fourth proportional to 7,458.18, 11,187.30 and 3,561.72 is: 5,342.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,458.18 : 11,187.30 = 3,561.72 : x
  2. Step 2: Convert to fraction form
    7,458.18/11,187.30 = 3,561.72/x
  3. Step 3: Cross multiply
    7,458.18x = 11,187.30 × 3,561.72
  4. Step 4: Simplify right side
    7,458.18x = 39,846,030.16
  5. Step 5: Solve for x
    x = 39,846,030.16/7,458.18
  6. Step 6: Final answer
    x = 5,342.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.